To do this, they would have to create a pill that contains the “modulators of love”, which could potentially help us stay together longer, increase attractiveness and decrease infidelity.

The essential ‘ingredients’ of the pill are:

Pheromones
These are odourless chemicals that trigger emotion responses, mainly sexual and attractiveness, between the opposite sex. If this was popped into a pill, it could potentially help people maintain the attraction they first felt for their partner.

Oxytocin and Vasopressin
Also known as the ‘bonding chemicals’, oxytocin and vasaopressin are hormones released in the body that promote physical bonding. The brain releases a high amount of these hormones during the early, romantic stages of a relationship. If these hormones were present in a pill, they could strengthen the sense of togetherness and bonds between couples.

Testosterone
High levels of testosterone increase the amount of sexual desire between the opposite sex. A testosterone-induced pill could aid flagging libidos.

CRHAlthough this hormone (corticotropin-releasing hormone) can sometimes cause depression and anxiety, it also creates the fear of separation, which can help deepen the bond between two people.

Entactogens
This drug (found in MDMA pills like ecstasy) creates the feeling of openness and the desire for emotional closeness, claims the paper. This could increase the connection and sociability between people if it was present in a pill.